diff --git a/benchmark/operation_test.go b/benchmark/operation_test.go
index 80f20ddc75..04e618e7bc 100644
--- a/benchmark/operation_test.go
+++ b/benchmark/operation_test.go
@@ -32,15 +32,10 @@ func BenchmarkClientWrite(b *testing.B) {
 	}
 	for _, bm := range benchmarks {
 		b.Run(bm.name, func(b *testing.B) {
-			client, err := mongo.NewClient(bm.opt)
+			client, err := mongo.Connect(context.Background(), bm.opt)
 			if err != nil {
 				b.Fatalf("error creating client: %v", err)
 			}
-			ctx := context.Background()
-			err = client.Connect(ctx)
-			if err != nil {
-				b.Fatalf("error connecting: %v", err)
-			}
 			defer client.Disconnect(context.Background())
 			coll := client.Database("test").Collection("test")
 			_, err = coll.DeleteMany(context.Background(), bson.D{})
@@ -76,15 +71,10 @@ func BenchmarkClientBulkWrite(b *testing.B) {
 	}
 	for _, bm := range benchmarks {
 		b.Run(bm.name, func(b *testing.B) {
-			client, err := mongo.NewClient(bm.opt)
+			client, err := mongo.Connect(context.Background(), bm.opt)
 			if err != nil {
 				b.Fatalf("error creating client: %v", err)
 			}
-			ctx := context.Background()
-			err = client.Connect(ctx)
-			if err != nil {
-				b.Fatalf("error connecting: %v", err)
-			}
 			defer client.Disconnect(context.Background())
 			coll := client.Database("test").Collection("test")
 			_, err = coll.DeleteMany(context.Background(), bson.D{})
@@ -125,15 +115,10 @@ func BenchmarkClientRead(b *testing.B) {
 	}
 	for _, bm := range benchmarks {
 		b.Run(bm.name, func(b *testing.B) {
-			client, err := mongo.NewClient(bm.opt)
+			client, err := mongo.Connect(context.Background(), bm.opt)
 			if err != nil {
 				b.Fatalf("error creating client: %v", err)
 			}
-			ctx := context.Background()
-			err = client.Connect(ctx)
-			if err != nil {
-				b.Fatalf("error connecting: %v", err)
-			}
 			defer client.Disconnect(context.Background())
 			coll := client.Database("test").Collection("test")
 			_, err = coll.DeleteMany(context.Background(), bson.D{})
diff --git a/benchmark/single.go b/benchmark/single.go
index b85b46f34f..333a8f66be 100644
--- a/benchmark/single.go
+++ b/benchmark/single.go
@@ -29,13 +29,10 @@ func getClientDB(ctx context.Context) (*mongo.Database, error) {
 	if err != nil {
 		return nil, err
 	}
-	client, err := mongo.NewClient(options.Client().ApplyURI(cs.String()))
+	client, err := mongo.Connect(ctx, options.Client().ApplyURI(cs.String()))
 	if err != nil {
 		return nil, err
 	}
-	if err = client.Connect(ctx); err != nil {
-		return nil, err
-	}
 
 	db := client.Database(integtest.GetDBName(cs))
 	return db, nil
diff --git a/mongo/integration/client_options_test.go b/mongo/integration/client_options_test.go
index 0fb068bc5e..43703d5e33 100644
--- a/mongo/integration/client_options_test.go
+++ b/mongo/integration/client_options_test.go
@@ -24,9 +24,7 @@ func TestClientOptions_CustomDialer(t *testing.T) {
 	cs := integtest.ConnString(t)
 	opts := options.Client().ApplyURI(cs.String()).SetDialer(td)
 	integtest.AddTestServerAPIVersion(opts)
-	client, err := mongo.NewClient(opts)
-	require.NoError(t, err)
-	err = client.Connect(context.Background())
+	client, err := mongo.Connect(context.Background(), opts)
 	require.NoError(t, err)
 	_, err = client.ListDatabases(context.Background(), bson.D{})
 	require.NoError(t, err)
diff --git a/mongo/integration/mtest/mongotest.go b/mongo/integration/mtest/mongotest.go
index 22aaa99a0a..ed7bddade7 100644
--- a/mongo/integration/mtest/mongotest.go
+++ b/mongo/integration/mtest/mongotest.go
@@ -692,13 +692,13 @@ func (t *T) createTestClient() {
 		// pin to first mongos
 		pinnedHostList := []string{testContext.connString.Hosts[0]}
 		uriOpts := options.Client().ApplyURI(testContext.connString.Original).SetHosts(pinnedHostList)
-		t.Client, err = mongo.NewClient(uriOpts, clientOpts)
+		t.Client, err = mongo.Connect(context.Background(), uriOpts, clientOpts)
 	case Mock:
 		// clear pool monitor to avoid configuration error
 		clientOpts.PoolMonitor = nil
 		t.mockDeployment = newMockDeployment()
 		clientOpts.Deployment = t.mockDeployment
-		t.Client, err = mongo.NewClient(clientOpts)
+		t.Client, err = mongo.Connect(context.Background(), clientOpts)
 	case Proxy:
 		t.proxyDialer = newProxyDialer()
 		clientOpts.SetDialer(t.proxyDialer)
@@ -716,14 +716,11 @@ func (t *T) createTestClient() {
 		}
 
 		// Pass in uriOpts first so clientOpts wins if there are any conflicting settings.
-		t.Client, err = mongo.NewClient(uriOpts, clientOpts)
+		t.Client, err = mongo.Connect(context.Background(), uriOpts, clientOpts)
 	}
 	if err != nil {
 		t.Fatalf("error creating client: %v", err)
 	}
-	if err := t.Client.Connect(context.Background()); err != nil {
-		t.Fatalf("error connecting client: %v", err)
-	}
 }
 
 func (t *T) createTestCollection() {
diff --git a/x/mongo/driver/session/client_session.go b/x/mongo/driver/session/client_session.go
index 32e556ff1f..4181b6d3de 100644
--- a/x/mongo/driver/session/client_session.go
+++ b/x/mongo/driver/session/client_session.go
@@ -465,13 +465,17 @@ func (c *Client) CommitTransaction() error {
 // w timeout of 10 seconds. This should be called after a commit transaction operation fails with a
 // retryable error or after a successful commit transaction operation.
 func (c *Client) UpdateCommitTransactionWriteConcern() {
-	if c.CurrentWc == nil {
-		c.CurrentWc = &writeconcern.WriteConcern{}
-	}
-	c.CurrentWc.W = "majority"
-	if c.CurrentWc.WTimeout == 0 {
-		c.CurrentWc.WTimeout = 10 * time.Second
+	wc := &writeconcern.WriteConcern{}
+	timeout := 10 * time.Second
+	if c.CurrentWc != nil {
+		*wc = *c.CurrentWc
+		if c.CurrentWc.WTimeout != 0 {
+			timeout = c.CurrentWc.WTimeout
+		}
 	}
+	wc.W = "majority"
+	wc.WTimeout = timeout
+	c.CurrentWc = wc
 }
 
 // CheckAbortTransaction checks to see if allowed to abort transaction and returns